Technical Data Bulletin

© 2020 Schneider Electric
All Rights Reserved
12/2/2020
7-9
www.se.com/us
Insulated Case Circuit Breakers Selection Information
Class 600, 800
MasterPact MTZ Molded Case Circuit Breakers
MasterPact MTZ1
800–1600 A
MasterPact MTZ2
800–6000 A
MasterPact MTZ3
4000–6000 A
Circuit Breaker Type
MTZ1-N MTZ1-H MTZ1-L1 MTZ1-L
MTZ1-LF
[55]
MTZ2-N MTZ2-H MTZ2-L
MTZ2-LF
[55]
MTZ2-H MTZ2-L MTZ3-H MTZ3-L
Number of Poles
3 , 4 3, 4
3 3 3
3 , 4 3, 4
3 3
3 , 4
3
3 , 4
3
Current Range
400–
1200
400–
1200
400–
1200
400–
1200
400–
1200
400–
2000
400–
2000
400–
2000
400–
2000
1200–
3000
1200–
3000
2000–
6000
2000–
6000
Interrupting Ratings
UL/CSA
Rating
(kA RMS)
(50/60 Hz)
240 Vac 50 65 100 200 200 65 100 200 200 100 200 100 200
480Y/277 Vac 50 50 65 100 100 65 100 150 150 100 150 100 150
480 Vac 50 50 65 100 100 65 100 150 150 100 150 100 150
600Y/347 Vac 35 50 — — — 50 85 100 100 85 100 85 100
600 Vac 35 50 — — — 50 85 100 100 85 100 85 100
DC Ratings
250 Vdc — — — — — — — — — — — — —
500 Vdc — — — — — — — — — — — — —
IEC [56]
(kA RMS) Icu/
Ics
240 Vac — — — — — — — — — — — — —
415 Vac — — — — — — — — — — — — —
Special Ratings
CCC — — — — — — — — — — — — —
Fed. Specs W-C-375B/GEN
— — — — — — — — — — — — —
HACR (2P, 3P)
— — — — — — — — — — — — —
Connections/Terminations
Unit Mount X X X X X X X X X X X X X
I-Line™ — — — — — — — — — — — — —
Rear Connection X X X X X X X X X X X X X
Drawout X X X X X X X X X X X X X
Optional Lugs
— — — — — — — — — — — — —
Accessories and Modifications
Shunt Trip
X X X X X X X X X X X X X
Undervoltage Trip
X X X X X X X X X X X X X
Auxiliary Switches
X X X X X X X X X X X X X
Alarm Switch X X X X X X X X X X X X X
Motor Operator
X X X X X X X X X X X X X
Handle Operators
— — — — — — — — — — — — —
Mechanical Interlocks X X X X X X X X X X X X X
Padlock Attachment X X X X X X X X X X X X X
Optional GF Protection
X X X X X X X X X X X X X
Trip System Type
Thermal-magnetic
— — — — — — — — — — — — —
Instantaneous-only (MCP)
— — — — — — — — — — — — —
Electronic X X X X X X X X X X X X X
Enclosures
General Purpose (NEMA 1)
— — — — — — — — — — — — —
Raintight (NEMA 3R)
— — — — — — — — — — — — —
Dust-tight (NEMA 12)
— — — — — — — — — — — — —
Watertight (NEMA 4, 4X, 5)
— — — — — — — — — — — — —
Explosion Proof (NEMA 7, 9)
— — — — — — — — — — — — —
Dimensions
(3P Drawout)
in. (mm)
Height 12.67 (322) 17.28 (439) 17.28 (439) 17.28 (439)
Width
11.25 (286) 17.74 (450) 17.74 (450) 30.94 (786)
Depth 13.54 (344) 18.50 (470) 18.50 (470) 18.50 (470)
Pages MasterPact™ Power Circuit Breakers, page 7-66 and Catalog 0614CT1701
NOTE: All circuit breakers on this chart are UL Listed and CSA Certified unless otherwise noted.
7
MINIATURE AND MOLDED CASE
CIRCUIT BREAKERS
[55] Tested to show arc flash hazard risk category as reference by NFPA70E.
[56] See Catalog 0614CT1701 for additional ratings and other information.